化学示例

${(N H_{4})}_{2} S O_{4}$

解题步骤 1

${(N H_{4})}_{2} S O_{4}$ is soluble because it contains ammonium $N H_{4}$ . All ammonium compounds are soluble .

${(N H_{4})}_{2} S O_{4}$ 可溶

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$